> CVE-2026-101914 [MEDIUM]

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PUBLISHED
2026-09-28 20:17
MODIFIED
2026-09-28 20:17
CVSS_SCORE V3
6.5
EPSS (Prob. Exploit)
0.25%
Top 84.4%
DATA SOURCES:
NVD đź”— 2026-09-28 CWE MITRE đź”— 2026-10-01 FIRST EPSS đź”— 2026-10-22 GITHUB đź”— 2026-10-15 OSV đź”— 2026-10-01

> DESCRIPTION

@grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.13.1 and 1.14.1, the exact path (method name) matcher used by RBAC performs a prefix comparison instead of an equality comparison when case-insensitive matching is enabled. If one service method name prefixes another and the methods have different access rules, a request for the longer method can match the shorter method's rule and cause incorrect authorization. This issue is fixed in versions 1.13.1 and 1.14.1.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
EXPLOITABILITY
2.2
IMPACT
4.2

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
High (H)
Conditions spécifiques doivent être réunies pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
Low (L)
Divulgation limitée d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
Low
Divulgation limitée d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-187 CWE-863

> CWE DETAILED DESCRIPTIONS

CWE-187: Partial String Comparison - The product performs a comparison that only examines a portion of a factor before determining whether there is a match, such as a substring, leading to resultant weaknesses. | CWE-863: Incorrect Authorization - The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

> GITHUB SECURITY ADVISORY

GHSA-88h9-xgvx-hvf2 MODERATE

@grpc/grpc-js: The exact path match matcher incorrectly only applies a prefix match for case-insensitive matches

AFFECTED PACKAGES:
NPM / @grpc/grpc-js-xds
= 1.14.0
Fixed in: 1.14.1
NPM / @grpc/grpc-js-xds
< 1.13.1
Fixed in: 1.13.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

@grpc/grpc-js: The exact path match matcher incorrectly only applies a prefix match for case-insensitive matches

AFFECTED PACKAGES:
Unknown / Unknown
121 versions affected
ALIASES:
GHSA-88h9-xgvx-hvf2

> HISTORIQUE DES MODIFICATIONS

Première apparition
28/09/2026 20:17
Source: NVD
📊 ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-187: Partial String Comparison - The product performs a comparison that only examines a portion of a factor before determining whether there is a match, such as a substring, leading to resultant w...
Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/grpc/grpc-node/commit/6cf64b596da03f1942a6b168998f0670217a99c...
https://github.com/grpc/grpc-node/commit/a6c5b31180cc8cea94d0a5ea215ce31a49e0409...
https://github.com/grpc/grpc-node/commit/f32f3712e44581d8dfc8359bd8d30096662f4c7...
https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.13.1
https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.14.1
https://github.com/grpc/grpc-node/security/advisories/GHSA-88h9-xgvx-hvf2
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